NEC Electronics (Europe) GmbH
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6.2.3 X1, X2 pins
An external oscillator can be connected to the X1 and X2 pins of the device. Connect the oscillator between the X1
and X2 pins and place a small capacitor on the SMD1 areas of those pins.
For size of the capacitor refer to the oscillator manufacturer specification / recommendation.
VDD
VSS
C
Device VDD
pin
Figure 6-7
X1, X2 pin components
Refer to the Fx3 User’s Manual and Table 6-4 for the location of the X1 and X2 pins on the different devices.
Fx3 pinning
Signal
FE3 FF3 FG3 FJ3 FK3
X1
7 12 12 12 12
X2
8 13 13 13 13
Table 6-4
X1, X2 signal connection
